21536340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1157

約数の個数: 96

約数和(自身を含む): 70447104

約数和(自身を除く): 48910764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1091, 1316, 1410, 1645, 1974, 2182, 2820, 3273, 3290, 3948, 4364, 4935, 5455, 6546, 6580, 7637, 9870, 10910, 13092, 15274, 16365, 19740, 21820, 22911, 30548, 32730, 38185, 45822, 51277, 65460, 76370, 91644, 102554, 114555, 152740, 153831, 205108, 229110, 256385, 307662, 358939, 458220, 512770, 615324, 717878, 769155, 1025540, 1076817, 1435756, 1538310, 1794695, 2153634, 3076620, 3589390, 4307268, 5384085, 7178780, 10768170, 21536340]

約数ペア:

[(1, 21536340), (2, 10768170), (3, 7178780), (4, 5384085), (5, 4307268), (6, 3589390), (7, 3076620), (10, 2153634), (12, 1794695), (14, 1538310), (15, 1435756), (20, 1076817), (21, 1025540), (28, 769155), (30, 717878), (35, 615324), (42, 512770), (47, 458220), (60, 358939), (70, 307662), (84, 256385), (94, 229110), (105, 205108), (140, 153831), (141, 152740), (188, 114555), (210, 102554), (235, 91644), (282, 76370), (329, 65460), (420, 51277), (470, 45822), (564, 38185), (658, 32730), (705, 30548), (940, 22911), (987, 21820), (1091, 19740), (1316, 16365), (1410, 15274), (1645, 13092), (1974, 10910), (2182, 9870), (2820, 7637), (3273, 6580), (3290, 6546), (3948, 5455), (4364, 4935)]